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54551145428 = 22138312639283
BaseRepresentation
bin110010110011100000…
…000110101111010100
312012210202121022110122
4302303200012233110
51343210043123203
641021020211112
73640554041213
oct626340065724
9165722538418
1054551145428
1121153776a6a
12a6a5099a98
1351b49130a0
1428d6d5107a
1516441d7538
hexcb3806bd4

54551145428 has 24 divisors (see below), whose sum is σ = 104046585888. Its totient is φ = 24874106976.

The previous prime is 54551145409. The next prime is 54551145479. The reversal of 54551145428 is 82454115545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6315326 + ... + 6323957.

It is an arithmetic number, because the mean of its divisors is an integer number (4335274412).

Almost surely, 254551145428 is an apocalyptic number.

It is an amenable number.

54551145428 is a deficient number, since it is larger than the sum of its proper divisors (49495440460).

54551145428 is a wasteful number, since it uses less digits than its factorization.

54551145428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12639383 (or 12639381 counting only the distinct ones).

The product of its digits is 640000, while the sum is 44.

The spelling of 54551145428 in words is "fifty-four billion, five hundred fifty-one million, one hundred forty-five thousand, four hundred twenty-eight".

Divisors: 1 2 4 13 26 52 83 166 332 1079 2158 4316 12639283 25278566 50557132 164310679 328621358 657242716 1049060489 2098120978 4196241956 13637786357 27275572714 54551145428